emittance


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emittance

[i′mit·əns]
(thermodynamics)
The power radiated per unit area of a radiating surface. Also known as emissive power; radiating power.

emittance

The ratio of radiant flux emitted by a material to that emitted by a blackbody at the same temperature, under the same conditions.
References in periodicals archive ?
The thermal emittance is a measure of how easily a surface will give up heat, and a high emittance surface will give off heat more readily and thus reach equilibrium at a lower temperature.
9) Thermal control coatings (TCCs) control the spacecraft temperatures by their thermooptical properties including spectral absorptance (ocs) and thermal emittance (st).
A selective coating is applied to the metal tube's surface to enhance absorption and reduce emittance.
The numerical simulations imply that the relativistic ponderomotive acceleration can produce high quality electron bunches characterized by an extremely short bunch duration of sub-femtosecond, the energy spread less than 1%, and the normalized transverse emittance less than 10: mmmrad.
I am committed to the principles of posture, emittance, and onset which I learned right here, in his book
In visible wavelengths the reflectance increases as the temperature increases, because of decreasing emittance but in infrared wavelengths the reflectance and transmittance decrease as the temperature increases [2, 5].
The experiments were carried out in a 250 mL glass immersion-based photochemical reactor, charged with 100 mL of aqueous solution, where the solution was illuminated by means of a low-pressure, 10 W mercury lamp with 90% emittance at 254 nm, located axially and held in a quartz immersion tube.
accelerator project aiming to produce small emittance ultra-short electron beam pulses for advanced experimental study in the fields of
Tridonic introduces the square OLED module LUREON REP with color temperature of 4,000K, featuring high levels of luminous emittance (up to 12,000lm/m2) and luminance (4,000cd/m2).
The contex thermoguard blocks the extreme heat of the sun due to its high solar reflectance and high thermal emittance.
Peak emittance from the human body is around 10 um and so this camera will provide the best possible resolution.
J0rgensen, "Improved Efficiency Drying Using Selective Emittance Radiant Burners".